三峡工程导流明渠通航水力学试验研究

Hydraulic Model Test on Navigation Condition in Diversion Channel of Three Gorges Project

简介了三峡工程导流明渠施工通航水力学成果。其内容包括：航线选择，纵向围堰首部形式，明渠最佳断面形式，明渠各部位冲刷对通航的影响。最后，还对提高明渠通航流量级别及进一步减小明渠工程量的可能性进行了探讨。

The experimental findings on the diversion channel of the Three Gorges Project to be used asa navigation pass during the second construction phase is presented briefly. The studies include : theselection of sailing line , the configuration of head of the longitudinal cofferdam , the optimum crosssection of the diversion channel , the effect of channel scour to navigation , etc. The problems relatingto raising the navigation discharge and further reducing the excavated volume in the channel are explored.